SUZUKI Chihiro


SUZUKI Chihiro

J-GLOBAL         Last updated: Sep 11, 2019 at 16:27
 
Avatar
Name
SUZUKI Chihiro
Affiliation
National Institute for Fusion Science
Section
Department of Helical Plasma Research, High-Temperature Plasma Physics Research Division
Job title
Assistant Professor
Degree
Doctor (Engineering)(Nagoya University)
Research funding number
30321615
ORCID ID
0000-0001-6536-9034

Research Interests

 
 

Research Areas

 
 

Academic & Professional Experience

 
Apr 2007
 - 
Today
Assistant Professor, Department of Helical Plasma Research, National Institute for Fusion Science, National Institutes of Natural Sciences
 
Apr 1999
 - 
Mar 2007
Research Associate, Department of Large Helical Device Project, National Institute for Fusion Science
 

Education

 
Apr 1994
 - 
Mar 1999
Electronics, Department of Engineering, Nagoya University
 
 
 - 
1999
Electronics, Graduate School, Division of Engineering, Nagoya University
 
Apr 1990
 - 
Mar 1994
Electrical Engineering, Department of Engineering, Nagoya University
 
 
 - 
1994
Electrical Engineering, Faculty of Engineering, Nagoya University
 

Published Papers

 
C. Suzuki, K. Mukai, S. Masuzaki, M. Kobayashi, B. J. Peterson, T. Akiyama, I. Murakami
Nuclear Materials and Energy   19 195-199   May 2019
© 2019 We have measured extreme ultraviolet (EUV) and soft X-ray emission spectra of krypton (Kr) ions in the Large Helical Device (LHD) plasmas with Kr gas seeding intended for mitigating divertor heat loads. Several isolated lines or quasi-cont...
Chihiro Suzuki, Fumihiro Koike, Izumi Murakami, Naoki Tamura, Shigeru Sudo, Gerry O'Sullivan
Atoms   7    Jan 2019
© 2019 by the authors. Soft X-ray spectra from high Z rare-earth (lanthanide) elements have been systematically observed in optically thin, high-temperature plasmas produced in the Large Helical Device (LHD), a facility for magnetically confined f...
Chihiro Suzuki, Izumi Murakami, Fumihiro Koike, Takeshi Higashiguchi, Hiroyuki A. Sakaue, Naoki Tamura, Shigeru Sudo, Gerry O'Sullivan
X-Ray Spectrometry      Jan 2019
© 2019 John Wiley & Sons, Ltd. We are developing an experimental database of extreme ultraviolet spectra from highly charged ions using optically thin high-temperature plasmas produced in the Large Helical Device. Spectra from a variety of eleme...
Chihiro Suzuki, Fumihiro Koike, Izumi Murakami, Izumi Murakami, Naoki Tamura, Shigeru Sudo
Atoms   6(2) 24   May 2018   [Refereed]
© 2018 by the authors. We have systematically observed extreme ultraviolet (EUV) spectra from highly charged ions of nine lanthanide elements with atomic numbers from 60-70 in optically thin plasmas produced in the Large Helical Device (LHD). Disc...
C. Suzuki, T. Higashiguchi, A. Sasanuma, G. Arai, Y. Fujii, Y. Kondo, T. H. Dinh, F. Koike, I. Murakami, I. Murakami, G. O'Sullivan
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms   408 253-256   Oct 2017   [Refereed]
© 2017 Elsevier B.V. We have observed soft X-ray spectra from highly charged ions of seven different lanthanide elements with atomic numbers ranging from 60 to 70 in laser-produced plasmas (LPPs) using CO2and Nd:YAG laser systems, the wavelengths ...
C. Suzuki, I. Murakami, I. Murakami, F. Koike, N. Tamura, H. A. Sakaue, S. Morita, S. Morita, M. Goto, M. Goto, D. Kato, D. Kato, H. Ohashi, T. Higashiguchi, S. Sudo, G. O'Sullivan
Plasma Physics and Controlled Fusion   59 014009   Jan 2017   [Refereed]
© 2017 IOP Publishing Ltd. We report recent results of extreme ultraviolet (EUV) spectroscopy of highly charged heavy ions in plasmas produced in the Large Helical Device (LHD). The LHD is an ideal source of experimental databases of EUV spectra b...
C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo
Journal of Physics B: Atomic, Molecular and Optical Physics   48(14) 144012   Jul 2015   [Refereed]
© 2015 IOP Publishing Ltd. We have observed a number of different types of extreme ultraviolet (EUV) spectra from highly charged gadolinium (Gd), terbium (Tb) and dysprosium (Dy) ions in optically thin plasmas produced in the Large Helical Device ...
C. Suzuki, I. Murakami, T. Akiyama, S. Masuzaki, H. Funaba, M. Yoshinuma
Journal of Nuclear Materials   463 561-564   Jul 2015   [Refereed]
© 2014 Elsevier B.V. Abstract We have carried out vacuum ultraviolet (VUV) spectroscopy of impurity ions in detached plasmas with impurity gas seeding in the Large Helical Device (LHD). In neon (Ne) gas seeding experiments, temporal evolutions of ...
C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo, E. Long, J. Sheil, E. White, F. O'Reilly, E. Sokell, P. Dunne, G. O'Sullivan
Journal of Physics: Conference Series   583 012007   Jan 2015   [Refereed]
© Published under licence by IOP Publishing Ltd. We have observed extreme ultraviolet (EUV) spectra from terbium (Tb) ions in optically thin and thick plasmas for a comparative study. The experimental spectra are recorded in optically thin, magnet...
C. Suzuki, F. Koike, I. Murakami, N. Tamura, S. Sudo, H. A. Sakaue, N. Nakamura, S. Morita, M. Goto, D. Kato, T. Nakano, T. Higashiguchi, C. S. Harte, G. Osullivan
Physica Scripta   89(11) 114009   Nov 2014   [Refereed]
© 2014 The Royal Swedish Academy of Sciences. We present recent results on the extreme ultraviolet (EUV) spectroscopy of highly charged high Z ions in plasmas produced in the Large Helical Device (LHD) at the National Institute for Fusion Science....

Misc

 
K. Fujii, C. Suzuki, M. Hasuo
IEEE Transactions on Plasma Science   47 3305-3314   Jul 2019
© 1973-2012 IEEE. The first step to realize an automatic experimental data analysis for fusion plasma experiments is fitting noisy data of temperature and density spatial profiles, which are routinely obtained. However, it has been difficult to co...
T. Goto, J. Miyazawa, H. Tamura, T. Tanaka, R. Sakamoto, C. Suzuki, R. Seki, S. Satake, M. Nunami, M. Yokoyama, N. Yanagi, A. Sagara
Nuclear Fusion   59    Jun 2019
© 2019 IAEA, Vienna. Conceptual design of a compact large helical device (LHD)-type helical fusion reactor FFHR-c1 has been conducted. This design focuses on a year-long electric power generation with as small a reactor size as possible by adoptin...
A. Dinklage, K. J. McCarthy, C. Suzuki, N. Tamura, Th Wegner, H. Yamada, J. Baldzuhn, K. J. Brunner, B. Buttenschön, H. Damm, P. Drewelow, G. Fuchert, M. Hirsch, U. Hoefel, H. Kasahara, J. Knauer, D. Maier, J. Miyazawa, G. Motojima, T. Oishi, K. Rahbarnia, T. Sunn Pedersen, R. Sakamoto, R. C. Wolf, D. Zhang
Nuclear Fusion   59    May 2019
© EURATOM 2019. Plasma terminating events due to excess pellet fueling and impurity injection is studied in the Large Helical Device, Wendelstein 7-X and TJ-II. Time scales for these events range from values of a decimal fraction of typical energy...
K. Ida, R. Sakamoto, M. Yoshinuma, K. Yamazaki, T. Kobayashi, Y. Fujiwara, C. Suzuki, K. Fuji, J. Chen, I. Murakami, M. Emoto, R. MacKenbach, H. Yamada, G. Motojima, S. Masuzaki, K. Mukai, K. Nagaoka, H. Takahashi, T. Oishi, M. Goto, S. Morita, N. Tamura, H. Nakano, S. Kamio, R. Seki, M. Yokoyama, S. Murakami, M. Nunami, M. Nakata, T. Morisaki, M. Osakabe
Nuclear Fusion   59    Apr 2019
© 2019 IAEA, Vienna. The isotope effect on impurities and bulk ion particle transport is investigated by using the deuterium, hydrogen, and isotope mixture plasma in the Large Helical Device (LHD). A clear isotope effect is observed in the impurit...
Ragava Lokasani, John Sheil, Ellie Floyd Barte, Hiroyuki Hara, Toshiki Tamura, Takuya Gisuji, Takeshi Higashiguchi, Chihiro Suzuki, Padraig Dunne, Gerry O'Sullivan, Jiri Limpouch
Journal of Physics B: Atomic, Molecular and Optical Physics   51    Oct 2018
© 2018 IOP Publishing Ltd. XUV spectra of 150 ps laser-produced samarium (Sm) plasmas in the 1.8-10 nm wavelength region, where Δn = 1, n = 4 - n = 5 and Δn = 0, n = 4 - n = 4 transitions dominate the observed emission, were investigated experimen...
Hayato Ohashi, Hiroyuki Hara, Goki Arai, Tadashi Hatano, Takeo Ejima, Chihiro Suzuki, Shinichi Namba, Akira Sasaki, Masaharu Nishikino, Gerry O’Sullivan, Takeshi Higashiguchi
Applied Physics B: Lasers and Optics   124    Oct 2018
© 2018, Springer-Verlag GmbH Germany, part of Springer Nature. Laser-produced medium element plasma sources are being considered as strong candidates for in vivo photographic imaging of biological samples in laboratory-scale water-window soft X-ra...
H. Takahashi, K. Nagaoka, K. Mukai, M. Yokoyama, S. Murakami, S. Ohdachi, T. Bando, Y. Narushima, H. Nakano, M. Osakabe, K. Ida, M. Yoshinuma, R. Seki, H. Yamaguchi, K. Tanaka, M. Nakata, F. Warmer, T. Oishi, M. Goto, S. Morita, T. I. Tsujimura, S. Kubo, T. Kobayashi, I. Yamada, C. Suzuki, M. Emoto, T. Ido, A. Shimizu, T. Tokuzawa, K. Nagasaki, T. Morisaki, Y. Takeiri
Nuclear Fusion   58    Aug 2018
© 2018 IAEA, Vienna. The deuterium (D) operation was initiated in the LHD in 2017. In the first campaign of the D experiments, we successfully extended the high temperature regime in the LHD. The new record of the ion temperature (T i) of 10 keV a...
Yoshiharu Yoshimura, Yutaro Sonoyama, Chihiro Suzuki, Leo Matsuoka
2018 Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR 2018      Jul 2018
© 2018 OSA. We performed spatially-resolved laser absorption spectroscopy of argon arcjet plasma with characteristic optical emission structures. We observed a periodic change of temperatures corresponding to the emission intensities alone the jet...
Ellie Floyd Barte, Ellie Floyd Barte, Hiroyuki Hara, Toshiki Tamura, Takuya Gisuji, When Bo Chen, Ragava Lokasani, Ragava Lokasani, Tadashi Hatano, Takeo Ejima, Weihua Jiang, Chihiro Suzuki, Bowen Li, Padraig Dunne, Gerry O'Sullivan, Akira Sasaki, Takeshi Higashiguchi, Jiří Limpouch
Journal of Applied Physics   123    May 2018
© 2018 Author(s). We have characterized the soft x-ray and extreme ultraviolet (XUV) emission of rhodium (Rh) plasmas produced using dual pulse irradiation by 150-ps or 6-ns pre-pulses, followed by a 150-ps main pulse. We have studied the emission...
T. Goto, J. Miyazawa, N. Yanagi, H. Tamura, T. Tanaka, R. Sakamoto, C. Suzuki, R. Seki, S. Satake, M. Nunami, M. Yokoyama, A. Sagara
Plasma Physics and Controlled Fusion   60    May 2018
© 2018 IOP Publishing Ltd. Integrated physics analysis of plasma operation scenario of the compact helical reactor FFHR-c1 has been conducted. The DPE method, which predicts radial profiles in a reactor by direct extrapolation from the reference e...

Research Grants & Projects

 
Ministry of Education, Culture, Sports, Science and Technology: Grants-in-Aid for Scientific Research(若手研究(B))
Project Year: 2008 - 2010    Investigator(s): Chihiro SUZUKI
In the Large Helical Device, we have constructed a diagnostic system for simultaneous achievement of imaging and photoncounting in high temperature plasmas by using dual soft X-ray CCD cameras and several filters with different cutoff energies. In...
Study on Confinment of Helical Plasma